Improvement in spark-arresters for locomotives



Bi. ALBERTSUN Spark-Arresters for Locomotives.

Patented June 2. I874 I Nth-151,553

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BENJAMIN ALBERTSON, OF TRENTON, NEW JERSEY, ASSIGNOR TO YVILLIAM R.ALBERTSON, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN SPARK-ARRESTERS FOR LOCOMOTIVES,

Specification forming part of Letters Patent No. 151,553, dated June 2,1674; application filed March 14, 1874.

To all whom it may concern Be it known that I, BENJAMIN ALBERTSON, ofTrenton, in the county of Mercer and State of New Jersey, have inventeda new and Improved Spark-Arrester for Locomotives; and I do herebydeclare the following to be a full and exact description of the same,reference being bad to the accompanying drawings, forming part of thisspecification, in which Figure 1 is a vertical section of my improvedspark-arrester, and Fig. 2 is a horizontal section of the same in theline w 00, Fig. 1.

Similar letters of reference in the accompanying drawings denote thesame parts.

The object of this invention is to prevent the escape of sparks from thesmoke-stack of a locomotive; and to that end the invention consists inproviding the smoke-flue of the spark-arrester with an opening in itsside, into which the products of combustion are deflected andconcentrated by two inclined planes, arranged at the sides of theopening, and are conducted into the smoke-flue, and between its innerface and an interior hollow deflector, formed of the frustums of twohollow cones in juxtaposition at the smaller ends, and thence upward,where the sparks and cinders are arrested by the inclined faces of thetop of the smoke-stack, provided with an orifice for the escape ofsmoke, and are deflected downward thereby into a chamber at the head ofthe boiler, the former having sliding doors in its bottom for theremoval of the cinders when necessary.

In the drawings, A represents the smokestack, covered, except over thecenter, by an inverted conical top, a, which may or may not be turneddown around the central opening 0 to form a flange, e, as shown. F isthe smokeflue within the stack A, having its upper end somewhat largerthan the opening 0, and its lower end suitably supported and connectedwith the boiler-fines, so as to give the necessary upward draft throughthe smokeflne, and out through the opening 0 and D is an invertedconical deflector, arranged within the smoke-flue, and having its upperend sufiiciently large to guide the rising cinders outward, and causethem to strike against the top a, be thrown outward thereby, and fallthrough the passage B into the chamber or receptacle 0 at the head ofthe boiler. The smaller end of the inverted conical deflector D issupported by the conical deflector D, the ends of the deflectors D Dbeing connected by a bayonet-joint or other similar fastening. The lowerend of the deflector D is supported by the plate P at the bottom of thechamber 0. 0 is an opening in the smoke flue F, to the vertical sides ofwhich are suitably attached the inclined planes 0 0 which extend to theboiler-plate b, providedo with perforations for the passage of theproducts of combustion. The inclined planes 0 01 concentrate and deflectthe products of o'oi nbus tion into the opening 0 in the smoke-flue S Sare sliding doors in the bottom of the chamber O, by means of which thecinders maybe removed when desired.

Inasmuch as cinders are liable to collectjin the conical deflectors D D,and must occasionally be removed therefrom, I extend the deflector downto the bottom of chamber 0, so that the workmen can get at it throughsuch chamber, and through a suitable door, (I, in the lower end of thesmoke-flue, provided for the purpose. I also make the lower end of thedeflector in the form of an independent conical segment, D, which, whenremoved, will allow the accumulated cinders to fall into the lower endof the smoke-flue, whence they may be raked into the chamber 0; or, bymeans of a trap-door at the lower end of flue F, the cinders may becaused-to drop directly to the ground.

The elongation of the deflector D not only renders its lower endaccessible through chamber C, but diminishes its resistance to theascending smoke-sparks, 850., and causes it to fulfill simply thepurpose of a guide, for which alone it is intended.

The lower end of the deflector may be supported by a tripod placed inthe lower end of the smoke-flue, or it may be supportedin any othersuitable manner.

The exhausts are, of course, directedinto the smokeflue, as usual. 1

Having thus described my inventiomwhat I claim as new is 1. Thesmoke-flue F, provided with an opcni11g,0 ,init-s side, and inclineddefleetingplmles stzmtially as (lescrlbed, and for the purposes 0 0substantially as described, and for the set forth.

purpose set forth. T T 2. The smoke-flue F, provided with an open- BJAMIN ALLEIMTSO) ing, 0 and inclined planes 0 0 in combinaimesses:

tion with the deflectors I) D, smoke-stack A, ALFRED REED,

and chamber 0, having sliding doors S S, sub- JOHN T. TEMPLE.

